Ryo Ishikawa lines up a putt during the final round of the 2009 Presidents Cup in San Francisco

International team member Ryo Ishikawa lines up a putt on the 1st green during the final round of the Presidents Cup at Harding Park Golf Course in San Francisco, California on October 11, 2009. UPI/Kevin Dietsch

Ryo Ishikawa (石川 遼, Ishikawa Ryō?, born 17 September 1991), also known by the nickname "Hanikami Ōji" (literally, "Bashful Prince"), is a Japanese professional golfer.

On 20 May 2007, Ishikawa became the youngest winner ever of a men's regular tournament on the Japan Golf Tour by winning the Munsingwear Open KSB Cup at the age 15 years and 8 months. He competed as an amateur and it was Ishikawa's first tour appearance. He finished one shot ahead of Japan's 9th top ranked player at the time, Katsumasa Miyamoto. The highest ranked player on the Official World Golf Ranking who took part in the event was Toru Taniguchi who finished T13, 6 shots shy of Ishikawa. Taniguchi ranked number 86 in the world after the event.

Ishikawa turned professional in 2008 and won another Japan Golf Tour tournament, the mynavi ABC Championship. By the close of 2008 he had become the youngest ever player to reach the top 100 of the Official World Golf Rankings.

United Press International is a leading provider of news, photos and information to millions of readers around the globe via UPI.com and its licensing services.

With a history of reliable reporting dating back to 1907, today's UPI is a credible source for the most important stories of the day, continually updated - a one-stop site for U.S. and world news, as well as entertainment, trends, science, health and stunning photography. UPI also provides insightful reports on key topics of geopolitical importance, including energy and security.

A Spanish version of the site reaches millions of readers in Latin America and beyond.

UPI was founded in 1907 by E.W. Scripps as the United Press (UP). It became known as UPI after a merger with the International News Service in 1958, which was founded in 1909 by William Randolph Hearst. Today, UPI is owned by News World Communications.